1. Generally, you will not get sick if you eat this, because the white sugar will not expire if the seal is not opened, but it is recommended that you eat it for the best. Check the shelf life. If the shelf life has not passed, of course you can eat it with confidence.

2. If white sugar is stored properly, it can theoretically be stored for 10 years (state-owned sugar generally needs to be stored for 8 years before it is stored). However, the food law stipulates that the shelf life must be marked, so companies generally mark the shelf life ranging from 1 to 2 years. Therefore, if expired white sugar looks dry and has not gone bad, it is edible. However, long storage time will cause excessive mites and microorganisms, so do not eat it directly. It can be used for cooking or wire drawing. It is safe after high temperature treatment.